exactly, this isnt an adapter like we are used to seeing. classic adaptors the paintball leaves the breach ---> into the adapter (where it can touch the walls) ---> into the barrel

this is breach---> insert with the adapter on the outside of the insert

really its a pretty clever idea, this way DW only has to make 1 barrel for every marker and sell them with different adapters

it probably adds a little weight but hey, now if you have a mix of threads you dont need multiple fiburs
really though they should have thought this up before 90% of the market was cocker threaded already